\begin{table}
\centering\centering
\caption{\label{tab:congtab}Estimated proportion Black MCs as a function of district \% white and no. Congress}
\centering
\begin{threeparttable}
\fontsize{9}{11}\selectfont
\begin{tabular}[t]{l>{\centering\arraybackslash}p{2cm}>{\centering\arraybackslash}p{2cm}>{\centering\arraybackslash}p{2cm}>{\centering\arraybackslash}p{2cm}}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{4}{c}{DV: Estimated proportion Black members of Congress} \\
\cmidrule(l{3pt}r{3pt}){2-5}
  & &nbsp;(1) & &nbsp;&nbsp;(2) & &nbsp;&nbsp;(3) & &nbsp;&nbsp;(4)\\
\midrule
District \% white & −0.715*** & −0.699*** & −0.803*** & −0.790***\\
 & (0.044) & (0.064) & (0.077) & (0.110)\\
No. Congress & −0.016+ &  & −0.023+ & \\
 & (0.009) &  & (0.014) & \\
District \% white $\times$ no. Congress & 0.023+ &  & 0.039+ & \\
 & (0.012) &  & (0.022) & \\
\addlinespace[0.3em]
\multicolumn{5}{l}{\textbf{No. Congress}}\\
\hspace{1em}113th Congress &  & 0.017 &  & 0.009\\
\hspace{1em} &  & (0.068) &  & (0.107)\\
\hspace{1em}114th Congress &  & 0.009 &  & −0.011\\
\hspace{1em} &  & (0.068) &  & (0.106)\\
\hspace{1em}115th Congress &  & −0.055 &  & −0.090\\
\hspace{1em} &  & (0.066) &  & (0.106)\\
\hspace{1em}116th Congress &  & −0.062 &  & −0.115\\
\hspace{1em} &  & (0.065) &  & (0.105)\\
\hspace{1em}117th Congress &  & −0.049 &  & −0.089\\
\hspace{1em} &  & (0.065) &  & \vphantom{1} (0.103)\\
\hspace{1em}118th Congress &  & −0.086 &  & −0.125\\
\hspace{1em} &  & (0.065) &  & (0.103)\\
\addlinespace[0.3em]
\multicolumn{5}{l}{\textbf{District \% white $\times$ no. Congress}}\\
\hspace{1em}District \% white  $\times$ 113th Congress &  & −0.008 &  & 0.006\\
\hspace{1em} &  & (0.091) &  & \vphantom{1} (0.160)\\
\hspace{1em}District \% white  $\times$ 114th Congress &  & 0.002 &  & 0.024\\
\hspace{1em} &  & (0.091) &  & (0.160)\\
\hspace{1em}District \% white  $\times$ 115th Congress &  & 0.065 &  & 0.115\\
\hspace{1em} &  & (0.090) &  & (0.170)\\
\hspace{1em}District \% white  $\times$ 116th Congress &  & 0.090 &  & 0.169\\
\hspace{1em} &  & (0.089) &  & (0.169)\\
\hspace{1em}District \% white  $\times$ 117th Congress &  & 0.080 &  & 0.163\\
\hspace{1em} &  & (0.089) &  & (0.160)\\
\hspace{1em}District \% white  $\times$ 118th Congress &  & 0.133 &  & 0.224\\
 &  & (0.090) &  & (0.161)\\
Intercept & 0.608*** & 0.593*** & 0.688*** & 0.680***\\
 & (0.032) & (0.048) & (0.051) & (0.075)\\
Num.Obs. & 3045 & 3045 & 1438 & 1438\\
Districts & All & All & Majority-Democrat & Majority-Democrat\\
R2 & 0.196 & 0.197 & 0.147 & 0.148\\
\bottomrule
\multicolumn{5}{l}{\rule{0pt}{1em}+ p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001}\\
\end{tabular}
\begin{tablenotes}
\item \textit{Note: } 
\item This table presents the results of ordinary least squares regression models. District \% white is scaled from 0 to 1. No. Congress is scaled from 0 (111th Congress, elected 2008) to 7 (118th Congress, elected 2022). The reference category in Models (2) and (4) is the 111th Congress. Majority-Democratic districts are defined as those in which a majority of voters supported the Democratic nominee in the most recent presidential election.
\end{tablenotes}
\end{threeparttable}
\end{table}
